Filter.



end adaptation of ports, ell es more fully 25 4in the Enrire of Germany,menager,

UNITED STATES PATENT FQFICE.

` PAUL TRAULSEN AND FRIEDniCH Frmnn..

Specification of Letters Patent.

.Patented Merch 1'?, lili-i8.'

Application loi March i2, 3.9?. Serie! No. 362,0'fl.

To all whom 'it Imoy concern:

Be it known that We, PAUL TnAULsE, i

citizen of l-lnmburg, and resident of No. 27 hemp Chaussee, Bergedorf,neer Homburg,

FRIEDRICH innnsnn, e citizen oi Hamburg,

ond residentof No. .it Kemp Chaussee,

Bergedorf, neer l-lnn'iburg, in the Empire of Germany, fore'rnen, haveinvented e new und useful Improved Filter, of whieh the following is especification.

The present invention relates to en iinproved filter, which. is adoptedto be adventegeously employed for n variety of purposes.-

The essentiel feature of the invention conoists in the combinetion, With e .filter of any suitable ond known construction, of' o fleeting bodyfor cerrying seid filter et the surfoce of the metter to be filtered,the filtered liquid beingv carried ofi1 by e rigid ci; flexible ortelescoping tubular conduit.

-Wtih these ends in view the invention con` sists in the novelcombination, arrangement hereinafter explained, shown in the ncconompnnying drawings and then specific-elly set out in the e pended claims.K

Figure l s'iows, es an example, one inode of carrying into practice ourimproved filter. Figs. 2, 3 end 4 indicate diii'erent exemples ofemploymentof our improved filter.

The improved filter according to our pres- `ent invention is primarilydestined to seperete-from liquids ofmrorious kinds Jthe foreign mettersuspended therein; it may, however, also be employed to edventegeforchem# ioolly changing the liquid in its filtration. With respect to theletter purpose, We refer for instance to the employment of nninnnl endvegetable chorcoels known to be suitable for the absorption of gases,testes and odors from liquids filtered therethrough. The filteringmete-rial may be chosen in everycese inl conformity with the purpose forwhich it is required, 'the invention not being intended to be lspecialmateriel.v

We will now roceed'to describe our invention more fuly.

ln the filter construction, shown by Way of exemple in Fig. l, thenumero-l' 1 denotes n receptacle of :my suitable materiel, preferably ofmetal, which is protected in e known wey :against corrosion.

eral woll 2 of' suidrcccptecle l is perforated end f -res'tricted tooily' The periph- A or constituted by e sieve, the size 'of Whose meshesdepende on the work which the iilter is to 'porton-n.

-S eenotes e. perforated cylindrical shell, which is insertedconeentricollj,7 the re ceptoele l, thereby producing en annuler space lfor the reception ol' the 'filtering materiel. l

The liquid to be filtered pew-:trates thrown the holes or meshes ci theperipheral wel into the receptacle l, it thereupon posses through Ytheiilt'ering nniterie-l eontefined in the annuler spore' 4 und issuesthrough. the perforntions in the internal cylindrical shell 3 in nfiltered or clarified or chemie-elly ab tered state. ln pereolot-ingthrough the perforated shell 3 it enters the center nce 5 of thereceptacle l, which is out off 'rom eny direct communication with theliquid to be filtered.

I i i center portion of the recept-stole l, which is mergin'ed by theperforated `shell 3.

7 denotes e. rigid or flexible or telescoping aforesaid funnelshapedispout G, which leeds the filtered metter from the con ter spaceto its leee of destination.

he filter hereinbefore described is carried by e floating body S, whichin the construction illustrated in Fig. l consists of onoy 8, filledwith air under atmospheric or higher rassure or inflated with'compressed gases. heconneetion between .the filter and the buoy een beeiiectcd'in env sniteble lrnown manner. In the exemple illustrated inlg. 1 the upper edge 9 of the pcripherel'well 2 of the receptacle 1 isrounded outwardly to s'uch en extent, that the buoy, whose internaldiameter corresponds exactly or approxi- .mately with the externaldiameter of tne body of the receptacle i, rests egeinet the curved edge9 as shown, thereby supporting, the filterget the surface of the liquidto be treated. A hendle l0, etteehed to thelilter in any xcotnfenientway fei'litetes the manipulations, When'it is desired` or reouired toremove, exchange 'or replace. thefilterin'gr materiel or when the filterhaving completed its Work, is to be teken out and storedjfor furtheruse. In Fig, 2 is shown the emploi-'nient ci the floating iilterdescribed for purifying Waiter For household or industrial purposes. Thewater is supplied by the pipe il to the reservoir l2, which is ndeptodto' bocloscd et its 6 denotes e funnel-shaped spout et the tubularconduit, tightly connected with the cock serves for issuingmhe filteredwater,

- voir 12.

used for clarifying -exible tube 7.

While the cock 14 enables the removal from the reservoir 12 of thesediments separated from the water in the 'fil tering operationv andcollecting at the bottom.

The floating iilter previously described is inserted in the chamber ofthe reservoir 12 adjacent to the supply ipe 11. The flexible tubularconduit 7 lea ing from the center f compartment of the filter carriesthe filtered water into the second chamberl of the reser- To that endsaid flexible conduit 7 has its lower extremity tightly attached in asuitable hole near the bottom of the partition 15e l i -When theimproved floating iilter isto be urposes, for instance in theclarification of ruit juices and the like, We may arrange inside thereservoir 127 which' serves forpthe reception of the matter to betreated, a stirring or agitating device. In the exam le illustrated inFig. 3 this 'device consists oigthe blades 17 `attached to a hollowshaft 19, which enters through the stuffing box 18 and is driven byexternal means from any suitable source of power at the required speedofvrotation. The flexible conduit 7 ol the floating filter extendsthrough the hollow shaft 19 in order to convey the filtered matter tothe outside of the reservoir 12. A stop cock 20 is inserted in theconduit 7 at the end projecting from the hollow shaft 19. v

In order to protect the flexible tube 7 from injury and destruction bythe rotating blades 17 of the stirring or agitating device, we arrangein the spacebetween said blades a basket-like grating 21 suitably madeof non-corrodible wire. Said grating 21 is fastened to the hollow shaft19 around the matter to be filtered falls and in consequence thereofthe-floating filter descends, the flexible considerable importance.

Vbilge pumpand effectively prevents clogging ves and other internalorgans or of the va the pump-and' the pipe conduit. The floating filteris preferably Arectilinei'irly guided up and down in order to free theflexible conduit 7, which carries off the filtered bllge andimprovements.

Vvfhen the surface of theprovided in lthe filter or in a lateral'projetion thereof.

We do not desire to be understood as limiting ourselves to the detailconstruction and arran ement of parts as herein shown and descriied, asit is manifest that variations and modifications therein may be resortedto, in the adaptation of our invention to varying conditions-of use,without departing from the spirit and scope of our invention Wetherefore reserve the right to all such variation and modification asproperly falls within the fsco e of our invention and the terms of theollowing claim.r

What we do claim as our invention, and desire to secure by LettersPatent, is:

1. An improved .floatinor filter comprising a non-corrodible receptacle1 provided with a perforated peripheral wall 2 and subdivided by apertorated cylindrical shell 3 into two concentric chambers 4, 5 ofwhich the external chamber 4 serves for the reception of the filteringmaterial; a funnel-shaped spout-6 at the o en center portion of the receptacle 1 Whic is margined by the perforated shell 3; a tubular conduit7 Ytightly connected Wit-h the aforesaid funnel-shaped spout. G forleading off the filtered matter from the center chamber 5 of thereceptacle 1 to its place of destination; and a floating body 8 in theshape of a buoy filled with air under atmospheric or higher pressure orinflated with compressed gases, saidv floating body being detachablyconnected to the receptaele 1 by curving outwardly the top edge 9 ol theperipheral wall 2 so as to form an abutment face for the buoy;substantially as described and 'shown and for the purposes set' forth.

2. A floating filter of the character described, having. a basket-likegrating 21 for the reception and protection of the'fleirible conduit 7said grating 21 comin into action when the floating iilter deseen byvirtue of the surface of the matter to be filtered falling,substantially as described and shown Y and for the purpose set forth.

ln witness whereof we have hereunto signed Aour names these 8th & 9thdaysv of February, 1907, in the presence of two sul scribing witnesses.

. PAUL 'IRAULSElNl-l FRIEDRICH BUNDESEN.

lIVit'nesses ERNEET ILL. MUMiiia'NnoFr, .IDA Cnnrsjr. IIAFERMANN.

